| Yazarlar |
BOZKAYA ÖMER
Pamukkale Üniversitesi, Türkiye |
|
YALÇIN HÜSEYİN
Cumhuriyet Üniversitesi, Türkiye |
Doç. Dr. Zeynel BAŞIBÜYÜK
Ahi Evran Üniversitesi, Türkiye |
|
özfırat olcay
|
|
YILMAZ HÜSEYİN
Cumhuriyet Üniversitesi, Türkiye |
| Özet |
| The Southeast Anatolian Metamorphic Complex comprises three structural units, the Keban, Malatya and Pütürge-Bitlis Metamorphics. Of these, the Keban Metamorphics (Carboniferous-Triassic) mainly comprise metamorphosed limestones/marbles and phyllites, consisting mainly of calcite, dolomite, quartz, albite, phyllosilicates (kaolinite, 2M1 white K-mica, 1M biotite, IIb chlorite, C-S, C-V and I-S) and scarce tremolite/actinolite and biotite, which were metamorphosed under sub-greenschist- to greenschist-facies conditions. The Malatya Metamorphics (Carboniferous-Triassic) comprise mainly metacarbonate rocks and metapelites - made up of calcite, quartz, albite, phyllosilicates (anchizonalepizonal 2M1 white K-mica and paragonite, IIb chlorite, dickite, C-V, C-S, I-S), chloritoid and goethite - that underwent a sub-greenschist-facies metamorphic event. The Pütürge Metamorphics (Precambrian-Permian) comprise metamorphic lithologies of pre-Devonian high-grade (augen gneiss, amphibolite, mica schist/gneiss, granitic gneiss) and post-Carboniferous low-grade rocks (calc-schist/marble and schist). The high-grade parts of this metamorphic unit display a Barrovian-type prograde metamorphism at amphibolite facies. Retrograde mineral occurrences, such as chlorite, C-V and C-S from garnet and biotite, reflect post-metamorphic-peak cooling assemblages. Low-grade parts of this unit are made up of calcite, dolomite, albite, phyllosilicates (IIb chlorite, 2M1 muscovite and 1M biotite, C-S), reflecting greenschist-facies metamorphic conditions. Lithological and mineralogical characteristics of the Southeast Anatolian Metamorphic: Complex imply the following: the Keban Metamorphics are similar to the Eastern Taurus Autochthon (Geyikdaǧi Unit) and apparently originated from that unit. In spite of their similar age ranges, the Malatya Metamorphics are quite different from the Keban Metamorphics and were probably derived from northern allochthonous Tauride units (e.g. Aladaǧ Unit). The Pütürge Metamorpbics originated from a southern source (i.e. the Arabian Platform), and horizons of similar age differ from those of the Keban and Malatya Metamorphics. |
| Anahtar Kelimeler |
| b value o | Crystallinity | Low-grade metamorphism | Organic-matter reflectance | Petrography | Phyllosilicate | Polytype | X-ray powder diffraction |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | GEOLOGICA CARPATHICA |
| Dergi ISSN | 1335-0552 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 06-2007 |
| Cilt No | 58 |
| Sayı | 3 |
| Sayfalar | 197 / 210 |
